IO

ION Geophysical Corporation

Delisted

IO was delisted on the 18th of May, 2022.

37 hedge funds and large institutions have $4.31M invested in ION Geophysical Corporation in 2021 Q4 according to their latest regulatory filings, with 12 funds opening new positions, 9 increasing their positions, 10 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
37
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$470K
Puts
$319K
Net Calls
Net Calls Change

Top Buyers

1 +$81K
2 +$69K
3 +$24.5K
4
State Street
State Street
Massachusetts
+$23.1K
5
Vanguard Group
Vanguard Group
Pennsylvania
+$21.6K

Top Sellers

1 -$248K
2 -$200K
3 -$176K
4
Citadel Advisors
Citadel Advisors
Florida
-$91K
5
Group One Trading
Group One Trading
Illinois
-$84K
Name Holding Trade Value Shares
Change
Change in
Stake
26
$3K
27
$1K
28
$1K
29
30
31
32
33
34
35
36
37